Kimck.... Have you loked at Supercharged Science? It offers a ton of hands on learning. There are something like 900 experiments available. There are also videos of every one if you don't have the time or material to do them yourself.
Shari - have you bought their program? I've dug around on their site, but was put off by the pricing of their package. The format looks good! I'm willing to pay, but it has to be really exceptional and not something I could put together on my own, you know what I mean?
I'd even consider trying plato again with 24 hour access if it's still reasonably priced in the fall (we did 3 hour access). The short access time kills us too!